Question: Who is employing Lockheed Martin ?
Paraphrase: Who is utilizing Lockheed Martin ?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P108 wd:Q7240 . ?sbj wdt:P31 wd:Q5 } 
Answer: Robert Crippen, Kelly Johnson, Bruce Jackson, Bernard Haisch, Marillyn Hewson, Ray O. Johnson, Leslie R. Lemon, Harriett B. Rigas, Stephen Paddock, Nancy Baker, James Crutchfield, Tory Bruno, Frank Armijo, Corbin Spells, J-P Wülser, Elisa Kendall, Susan Harkness Regli, Christopher Sembroski